Emma works delivering packages for Fedex. Her annual income in 2020 was US$ 45,500. As a consequence of the government stimuli in response to the pandemic, and the lock downs, the demand for online purchases and, consequently, delivery services, increased during 2021, leading to higher wages for Fedex workers. Her annual income in 2021 US$ 52,300. What is the percentage change in Emma's annual income from 2020 to 2021? (express in percentage, rounding up to the second decimal).